Extricating and nonskid device for vehicle wheels



J. FRANK 1,837,708

EXTRICATING AND NONSKID DEVICE FOR VEHICLE WHEELS bee. 22, 1931.

Filed June 1928 2 Sheets-Sheet 1 7 INVENTOR. Ja cob Fm Ba -M ATTORNEYSDec. 22; 1931. J; FRA 1,837,708

EXTRICATING AND NONSK ID DEVICE FOR VEHICLE WHEELS Filed June 25, 1928 2Sheets-Sheet 2 Far/0. 4

' gwvmtor Jacob flank a; WW

attowq Patented Dec. 22, 1931 JaooB Fermi c, or CLEVELAND, orrronxrnroarrne AND nonsxin nnvron Eon vain"one WHEELS fspplic'atioiifiledJune 25, 192a Serial in. 28?,923.

This invention is directed to the art of anti-skid devices for wheelsand an object in view istlie provision of an anti-skid device which maybe readily applied to a wheel without necessitating lifting or raisingof the latter from the ground. Such a. device as is provided by thisinvention constitutes, in effect an eXtricating mechanism for pullingvehicles out of mire or any mud hole orother similar conditions of griefsuch as a snow drift. Now known types of devices of this character arenot susceptible of being applied to wheels under extremely unfavorableconditions as above noted, and this invention provides a device capableof being attached to a wheel more than likely only in part so that itmay pull itself out of a hole under its own power.

It is a further object of the invention to provide an anti-skid deviceof this type which includes means for positively affixing the same tothe rim of a wheel and in this connection 'a detailed feature of nolittle importance lies in the mode of attachment of the anti-skid deviceto the rim. I avail myself of projections which are formed on the rim inany suitable manner and properly spaced and which constitute a grippingor an anchorage means for the fastening means carried by the anti-skiddevice, which in a preferred embodimenttakes the form of hooked armswhich engage with the side portions of a rim and hold the anti-skiddevice positively in place by hooking on to the projections aforesaid. VI

To the end of allowing for a certain amount of play or slippage betweenthe non-skid ole-- A feature of this invention of paramount.

importancei -is the provision of an anti-skid device which mayincludeany'on'e of several types of anti-skid tread elements. 1 Itis'read- 'ily appreciable thatvarious types ofvehicles and variousconditions of service dictate different constructions in the treadelements I that actually engage the surface on which-the vehicleoperates,and it is an object ofthis invention to provide an anti-skid"device which is readily adapted to include any of a variety of treads.In this connection,- I m1ght mention that various modifications of thedevice might include such elements as the,

socalled diamond tread, chain's tread members, spring mounted linktreads, rubber, or

kindred composition tread members, or in fact any desired members forthe purpose specified.

'Itis a still further object of the invention to dispense with thealmost universal-chain construction availed of in anti-skid devices ofthis character and employ in lieu thereof adevice made up of.substantial pieces of metal but which are joinedftogether by rivets soas to provide a flexible and easily handled unit; The advantages of sucha construction are many. I might callv attention to the fact that such adevice ismuch more readily applied to a tire and fits very snuglythereon; furthermore, the type of attachingmeans I prefer to employ isparticularly suited to such. a construction. In addition, harmful wearon the tire is obviated. 1 i

Going into my novel anti skiddevice a little more in detail, I employcurved or arched members including side pieces and which members arejoined together at each sideib'y, if

rivets. They carry attheir arcuate'portions 90 a desired type oftreadelement. V A

. The device is made up in two units, each unit comprising series ofthese curvedm'emhers linked together. One of the units com.

prises a substantial semi-circumference and carries at each end means"for attaching the device to the "wheel and alsosuitableinstrumentalities for having the other unit making up the wholedevice attached thereto. 'This particular making up ofthe device or itsat taching means/has particular advantages n the ease in which it may beapplied to a time. o

With these and other objects and advantages in View as will in partbecome apparent "and in part be hereinafter stated, theinvenmodification of my novel non-skid device as applied to the wheel,bringing outparticularly the method by which it is attached tlEIBiBtO. rv

Figure 2 is arsectional view taken about on the .line "2-12 of Figure 1and r =1iigure l3 is a detail view partly. in section and partly inelevation bringingout the particular resilient means provided foraccommodating the lslightamount of slippage be tween the time and:an-ti-sk-id-device.

' Figure lis aview somewhat fragmentary from the'si-de bringing out themanner of I application hit the devi'o'eto the tire;

Eigure his a sectional view similar to I are 4 in that it shows thedevice in the process of being applied.

Figure "6 is an enlarged detail showing partly in section and partly inelevation the attaching means associated 'wirth the rim of thewheeL .i

Figure? is an illustration of one form of my invention tread elementwhich be employed with Figure 8 shows another modification of ra treadclement.

'liigure 9 brings out the manner in which the diain type tread might beemployed,-

wh i le Figure 1'0 is a detail showing of one of the diamond treadconstructions.

"While a preferred specific embodiment of the invention is herein setforth, it is tobe understood that 1 am notto be limited tothe exactconstruct-ion illustrated and described 1 because various modificationsof these details may be provided in putting the invention into practicewithin the purview of the appended claims-'- e An automobile wheel ofwell known type is shown in Figure 1 and comprises generally a hub A,disc B, and rim C onw-hichTi's mounted arubber tire Dwhich may be ofanywell 7 known type' It is readily-appreciable that the particularconstruction of thewheel and the does not enter into my invention "inasmuch as my noveldevice may be applied'to any ty-peof wheel. The. rim isprovided with a formoii headed pin 1 such as is clearly brought outinFigure '6. Preferably this member comprises :a hollow rivet member whichh asits endsflare'd to provide the atta-chment to the rim-and also thedesired head.

The non-skid device is made up of two sections or units thatare'identical in construction with the exception of certain attachinginstrumentalities, the detailed construction of which will behereinafter more fully set out; These sections are made up of 7 sheetmetal members 2 :of arcu ate configuration that terminate in side pieces3, which pieces are pivotally joined together as indicated at 4 therebyimparting flexibility to the section. The 'arcuate portion of themembers 2 is provided with some desirable type of tread elementas'broug'ht out in Figure l by the diamond tread 5.

One of thesect ions is provided at each end with :an arcuate member ofdiflerent construction from the remainder and which member is designatedby the reference char-- acter '6; These lastnamed parts carry treadelements which are identical with the repieces 3 there are dependinglugs T Which-are provided with bores and carrya pivot pin 8 that at one:end is connected with the side pieces otthe acent member 2 by linkconstruction-shown at 9, A latch member 10 having at one end a hook 11isicarriedby the pivot 8 and is adapted to have the hook 11 engage. withone of the projections 1 providedon the JrimC Attention is directed toFigurev in .which the particular arrangement ofthe member with theremainder of the :anti-skid device in the tire is'brought out. WVhenthedevioe is appliedthe member LO which is curved to conform with thecu'rvattire-of the tire, liessnugly thereagainst. and

has a portion interposed between the member and the tire therebyproviding a connection which has features of the utmost rigidity. t 1

For the purpose of providing .a certain amount of play between thenon-skid treads and the tire, .looseness in the connection iis mademanifest by providing coil springs 12 which are interposed between thelatch 10 a-ndone of the lugs 7 and also between the other lug i7 and theheaded end of thepin 8. In a preferredform these springs are coiledaround the pin 8. To this same end each of V the sections is providedintermediate its ends .witlra loose joint of similar spring and pinconstruction as shown :at 13, this joint taking the place of the pivotalconnection l which would otherwise occur at thatpoint. Each. of themembers 6 is -provided with a pin 14 which is adaptedto be engaged by ahook element 15 carriedxby arcuate members 16 which constitutethe endelements :of the other section. These members 16 are connected with theadjacent .arcu'ate members 2 by a loose joint comprising the link pinand spring construction shown at 17.

In the present instance I have shown the diamond tread as the preferredtypeof non- (iii larly desirable under such conditions as serviceinvolving vervlarge and heavy vehicles, Figure 8 shows a type of treadelement comprising a groove defined by flanges 20, which is filled withrubber or similar composition This it Tpe of treadis particularlyharmless toany road surface on which the'vehicle may, operate. In Figure9 -I have shown the manner in which a conventional chain tread 21 may beavailed of. y i i In applying the non-skid device to the wheel, themember in'which the latch members 10 are included,;is first applied in amanner clearly shown in Figure 5, the springs 8 allowing for the readyattachment of the hook members 11 over the projection 1. The othersection may. then be applied and is securely fastened by thehook and pinarrangement 14 and 15. It is readily appreciable that the foregoingmanner of application of the devicerenders it particularly susceptibleto use with wheels which 7 are partially in mire or in otherunfavorable.

circumstances.

The preferred embodiment of tread ele} ment has taken the form of the socalled diamond tread which may include a flange construction in which isembeded or inlaid a filler of rubber or similar composition suitable toany particular wear receiving conditions. This type of treadconstruction has particular advantages in that it renders silent-theoperation of a vehicle Wheel to which this device has been applied andfurthermore obviates any harmful Wear on the road, and in addition Imight note that it further enhances the smoothness of movement of thevehicle along a surface. 7

Figure l shows how the hook 11 when de pressed, is engageable about thepin 1. It is necessary, not only to depress the member 6 and hook 11,but to press the hook 11 to the left against the spring 12 untilsai'd'hook is in receiving position relative to the pin 1 whereupon. thegrip on the hookis released, allowing the same to be snapped by thespring 12 over the pin 1 to the position shown in Figure 1. The tireengaging the outer end of latch 10 and the headed portion of the pin 1positively prevent the hook 11 from removal laterally from the pin 1,and spring 12 prevents the hook from slipping tangentially along rim G.

The spring between the latch 10 and the member 7 serves to hold thelatch by friction in ny desired position on the pivot pin 8. This is anadvantageous feature, as is evident upon inspection of Figure 5. The

latches 10 are set as shown and held thus bysaidspring (not shown inFigureb) while,

the device is being applied to the tire. As said device is lowered, thetire D forces the outer parts of latches 10 to move away from each otherand the hook portions toward each other and againstthe sides of the rimC. This constructionthereforeavoids the necessity of holding said outerparts bythe person appl ingthe same. He needmerely position the parts asshown in Figure 5 and then move the element 5 toward the tire D in orderto position the hooks where they may be applied to the pinsl. v j 1Having thus described my invention, what I claim as new and desire tosecureby Let:

ters Patent of the United'States, is

' tions on the wheel in the form of integral outstanding lugs, hookedarms carried'bythe shafts'for engaging said projections whereby"theifirstnamed member is positively held .in

position, on the wheel, and means for holding I the hooked arms inoperative position. 2. A device-of the class described, comprismg, in"combination, a two-section member,

adapted to engage the tread portion of the wheel, one of thesectionscarrying a shaft at each end, progections on the wheel, ;hookedI arms resiliently connectedtothe shaft for,

engaging said projections whereby the said member is I wheel. a

. 3::A deviceof the class describe-d, compris, ing, in combination,non-skid tread elements in two sections, shafts carried by each end ofoneyof the; sections, hooked arms carried by the shafts, and coilsprings holding the hooked armsin operative position.

i. A non-skid device of the class described, comprising, n -combination,pivotally connected carriermembers and tread members,-

said tread members including spaced ,roadpenetrating ridge-likeprojections adapted to cut unto the surface passed over and a resilientfilling mat-erlal between said space-d pro ections.gv

5. In a device of the classde'scribed, an

element I adapted to engage the treadof a tire, a Wheel having atire onvwhich said element is mounted, said wheel having lugs izu Y and saidelement having pivoted hooks be, positively held in position on the.

a plane transverse to the wheel, said Wheel having lugs adapted to bereceived by said hooks, said hooks having extensions projec't-ingintermediate the tire and said attach.- Vine'nt and means yieldinglymaintaining said hooks against accidental 'movement, where-by when saidattachment is applied to a tire, said tire forces said extensions topivot toward said attachment, whereby the hooks are nov'edtoward thesides of said wheel for engagement with saidlugs.

7-. In a non-skid attachment of "the class described, a wheel having alug, a luralit of non-skid sections on the Wheel, means for securing oneof said sections to the wheel, said means. comprising a hookjengageableover said lug,"meai1scooperating withsaid hook for maintaining the samein' engagement with said lug, means for connecting said sectionstogether, one of said sections having a lug and the other having a' hookengageableover said lug, and means for maintaining said hook inengagement with said lug.

'8. in a non-skidattacliment of the tie-SS described, a wheel having alug, aplurality' of non-skid sections on the wheel, means for securingone of said sections to the wheel, said means comprising a hookengageable .over said lug, means cooperating with said hook formaintaining 'the same in engagement with said lug, means forconnecti'ngsaid sections together, one of said sections and forming a flushresilient cushioning tread surface therewith, the metal base memberbeing adapted to cut into a road surface being passed over as the rubbertreadis compressed by weight of the load thereon,

the metal base thereby acting as an anti- I skid portion of the tread.

12. device of the: character described, comprising the combination Witha tire rim,-

of a plurality of non-skid treads adapted to be secured to the rim,eachtread being composed of a road-penetrating hollow metallic basehaving tread surface inlaid therein, the tread surface being formed of ia rubber sheet embedded in the metallic base and flush therewith tocushion the tread, while permitting the base tocut into a road surfacebeing passed overv to inhibit skidding. V g r In testimony whereof]:affix my signature.

' JACOB FRANK.

having a hug and the other havinga hook engageable over said lug, themeans for maintaining the first;hookin"place serving also to maintainthe second-hook in place.

9. In a non-skid attachmentof the class described, 'a wheel having apair of spaced f lugs, a non-skid section mounted on the wheel. andhaving hooks in facing'relati'on, said hooksyengaging' over said lugs,said section consisting of a plurality of parts, and means providing forrelative movement of said parts and including resilient means forinaintainingtliein together, said means serv- .ing also to maintains'aidhooks on saidlugs. l

r 10. In a non-skid attachment of the class described, a wheel, a pairof sections mounted on sa d Wheel, oneof said sections having lugs andthe other having hooks receiving ice I

